Patents by Inventor Jiri Svantner

Jiri Svantner has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Measuring set for determination of the sagittal depth and the average central curvature of gel contact lenses
    Patent number: 4205452
    Abstract: The invention pertains to a measuring set for determination of the sagittal depth and the average central curvature of soft contact lenses which consists of two measuring units based on the principle of depth gauges and the common electronic indication part. The apparatus serves for rapid and inexpensive selection of the correct contact lens according to the shape and peculiarities of the patient eye. Each measuring unit consists of a fixed part formed by a support plate, a stable conductive hollow screw, and a coaxially fitted conductor insulated from the screw and protruding above the insulation, and a movable part formed by a conductive nut bearing an insulation bushing for the protruding conductor and a scale and put on the screw.
    Type: Grant
    Filed: September 21, 1978
    Date of Patent: June 3, 1980
    Assignee: Ceskoslovenska akademie ved
    Inventors: Otto Wichterle, Jiri Svantner